In September, Home Depot said that hackers stole data on 56 million debit and credit cards. Now, according to a report from Reuters, the nation’s biggest home improvement retailers says that hackers also compromised about 53 million email addresses.

“In addition to the previously disclosed payment card data, separate files containing approximately 53 million email addresses were also taken during the breach,” Home Depot said in a statement. “These files did not contain passwords, payment card information or other sensitive personal information.”

According to Home Depot, hackers utilized a third-party vendor’s user name and password to enter the perimeter of the retailer’s network. The hackers then obtained elevated rights that allowed them to navigate areas of the retailer’s network and to use custom-built malware on its self-checkout systems.

The Associated Press reports that the data breach has forced retailers, including Home Depot and the previously targeted Target, as well as banks and card companies to move toward the implementation of microchips in credit and debit cards.

Home Depot said Thursday that it is rolling out EMV chip-and-PIN technology, which adds extra layers of card protection for customers and that it expects to complete the project ahead of the payment industry’s deadline.

Are you concerned when you shop at a store that your personal information could be stolen by hackers? Start a conversation by sounding off in the comments section.